Suction nozzle



7. March 19, s. E, LEITZELL SUCTION NOZZLE Filed June 20, 1954 smokepipes, air fiues and the' like.

Patented Mar. 19 1935 UNITED STATES w en PATENT OFFICE 3 Claims.

This invention relates to a suction nozzle designed primarily for use inconnection with vacuum cleaners of that type utilizing suction hose forthe purpose of cleaning out furnaces, Heretofore difliculty has beenexperienced in manipulating suction nozzles under these conditionsbecause of their tendency to hook into the joints of the structure beingcleaned, thereby interfering with the back and forth sliding movement ofthe nozzle during the suction operation.

It is an object of the present invention to provide a nozzle of novelform equipped with a runner whereby the nozzle can be moved freely overthe inner surfaces of a structure being cleaned and will not becomecaught in the joints or crevices of the structure.

A further object is to provide a nozzle of this type which is simple anddurable in construction and can be manipulated readily by means of thehose of a vacuum cleaner.

With the foregoing and other objects in view which will appear as thedescription proceeds, the invention consists of certain novel details ofconstruction and combinations of parts hereinafter more fully describedand pointed out in the claims, it being understood that changes may bemade in the construction and arrangement of parts without departing fromthe spirit of the invention as claimed.

In the accompanying drawing the preferred form of the invention has beenshown.

In said drawing:

Figure 1 is a view partly in section and partly in elevation showing thenozzle in position within a pipe being cleaned.

Figure 2 is a plan view of the nozzle.

Figure 3 is a section on line 3-3, Figure 1'.

Referring to the figures by characters of reference, 1 designates thehead of the nozzle which is in the form of a box the sides 2 of whichare relatively narrow and diverge downwardly from the top 3. The top andsides are joined to end plates 4 preferably parallel and provided witharcuate lower edges 5. The box opens between these arcuate edges toprovide an intake slot or opening which extends throughout the width ofthe head. Extending from the bottom edges of the walls 2 are tongues 6and additional tongues 7 are extended from the plates 4. These tongues'7 are extended in opposite directions from the head of the nozzle andare mounted on acentral arcuate runner8 formed preferably of stiff Wire.One end of the rubber is bent to provide an eye 9 in which is seated thelooped forward end 10 of a relatively stiff wire which is bowed inopposite directions to form side runners 11. The back ends of therunners are joined to the back end of the central runner 8 in anysuitable man ner asindicated at 12. Tongues 6 engage intermediateportions of the side runners l1 and it is to be understood that theseveral tongues 6 and '7 can be joined to the runners by welding,soldering or any other convenient means.

One of the plates 4 is formed near the top 3 with an opening 13 intowhich extends the small end ofa tapered sleeve 14. Lugs 15 are bentreadily from the small end of the sleeve 50- as to lap the inner surfaceof the apertured plate 4 to which they can be fastened by soldering,welding, etc.

Sleeve 14 is adapted to receive a tapered tubular shank 16 extendingfrom one end of a suction hose or pipe 17 such as is usually suppliedwith a vacuum cleaner. When it is desired to clean the interior of apipe, furnace, or the like the shank 16 with the sleeve 14 appliedthereto is inserted into the structure S so that runners 8 and 11 canrest upon and loosely engage the inner surface of said structure. Whenthe vacuum cleaner is operated a suction will be set up through the headof the nozzle and by means of suction hose or pipe 17 the nozzle can bemoved back and forth upon the surfaces to be cleaned. It will beunderstood that during this movement the runners will support the nozzleclose to but out of contact with the surface of the structure S.Consequently the parts will not become caught in the joints or crevicesusually found within furnaces, smoke pipes, air fines, and the like.

What is claimed is:

1. A nozzle of the class described including a flat elongated headhaving a slot in the bottom thereof extending throughout its length, anarcuate runner extending across and connected to the open end of thehead, and side runners extending past the head and joined to theadjacent portions thereof, all of the runners being connected at theirfront and back ends, and means for connecting a suction pipe to thehead.

2. A nozzle for use in cleaning the inner surfaces of smoke pipes andthe like including opposed arcuate side runners connected at their ends,an intermediate arcuate bottom runner connected at its ends to the endsof the side runners, a nozzle open at the bottom and secured to theintermediate andside runners, said runners constituting means forholding the open bottom of the nozzle close to but spaced from thesurface to be cleaned, a sleeve extending from the nozzle and openingthereinto, a suction pipe, and a connection between said pipe and thesleeve.

3. A device for cleaning the inner surfaces of smoke pipesand. the likeincluding a box-like nozzle head having an intake opening extendingthroughout the width thereof, tongues extending from the walls of theopening, opposed arcuate side runners, an intermediate arcuate bottomrunner, all of said runners being extended adjacent their centers acrossthe intake opening, said tongues being secured to the adjacent run--ners to hold the head assembled with the runners,

and a sleeve extending from and opening into the head for attachment toa. suction pipe.

STEWART E. LEITZELL.

